Method and means of beveling



Aug. 26

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F. c. SIMMONS METHOD AND MEANS OF BEVBLING Filed Auz. 22 1922 5Sheets-Sheet 5 Patented Aug. 26, 1924.

UNITED STATES FREDERICK C. SIMMONS, 0F HIGHLAND PARK, PENNSYLVANIA,ASSIGNOR TO PIONEER SUSPENDER COMPANY, A

CORPORATION OF PENNSYLVANIA.

METHOD AND MEANS OF BEVELING.

Application filed August 22, 1922. vSerial No. 583,461.

To all whom t may concern.'

Be it known that I, FREDERICK C. SIM- MONS, a citizen of the UnitedStates, residing at Highland Park, in the county of Delaware, State ofPennsylvania, have invented a new and useful Method and Means ofBeveling, of which the following is a speci-` fication. n

The invention relates to improvements in beveling. The object is toprovide improved method and means for cutting bevels on the edges ofstrips or bands of leather or the like. The invention is especiallyapplicable to cutting bevels on the side margins of leather strips inthe process of making belts for personal wear. The object is to give arounded formation to its side edges which greatly improves theappearance of the belt when finished.

The present practice is to take the strips of leather which have beencut to the approximate width and length of the finished belt and with avery sharp knife shave olf by hand the corners, one at a time, of saidmargins. r)This is an expensive operation, since it requires a skillfuloperator to do the work properly and the output per hour is 'relativelysmall.

By the present invention, the strips are beveled, as to their fourmarginal corners, simultaneously and with extreme accuracy, and with anoutput enormously increased over that of the hand operation.

Referring to the drawings, which illustrate, merely by way of example,suitable means for effecting the invention Fig. 1 is a front elevation.

Fig. 2 is a right hand side elevation.

Fig. 3 is a left hand side elevation.

Fig. 4 is a plan view.

Fig. 5 is a vertical section on line 5, 5 of Fig. 4.

Fig. 6 is a vertical section on Fig. 5, on an enlarged scale.

Fig. 6a is a fragmentary section on an enlarged scale.

'3. i view in supporting block.

Fig. 3 is plan view of a bevel cutting or shaving element and associatedmechanism.

Fig. t) is a side elevation of same.

10 is a front elevation of same.

Fig. 11 is an inside view of same in perspective.

Fig. 12 is an inside elevation of same.

line 6, 6 of persvective of a roller Figs. 13, 14 and 15 are views inelevation, of the elements or' members forming the angular way with theslot having the knife edge margins.

Fig. 16 is a cross-section of the strip after being operated upon.

Similar numerals refer to similar parts throughout the several views.

Upon the table 21 is mounted the housing structure 22 in which areprovided the bearings for the flanged wheels 23, 24, 25, 26, 27 and 28.The bearings are comprised in the adjustable blocks arranged in pairs,one of each pair being spring controlled so that the three pairs ofwheels cooperate as to their peripheries in a substantially common planeto carry the strip of material through the machine. The springcontrolled strippers 29 are provided to prevent the strip of materialfrom leaving its proper path of travel and following a wheel periphery.The three pairs of wheels 23 to 28 inclusive are driven by the motor 3()through the chains and sprockets as clearly shown. A tightening deviceis provided for the chain on one side of the machine, as at 31 in Fig.2, and for thel chain on the other side of the machine, as at 32 in Fig.3. A tightening device 34 is provided for the belt 35 connecting themotor to the ffy-wheel 36. This device is controlled by the spring 37,the tension of which is adjusted by the turn-buckle 38, see Figs. 2 and3.

Suitably arranged in the path of travel of the strip are provided meansfor cutting or shaving away the upper and lower corners of the sidemargins of the strip of material, as it is carried through the machine.

These shaving devices are arranged in pairs, one pair 40 and 41, in thepresent eX- ample, flanking the strip and adapted to cut the upper sidemarginal corners. The pair 42 and 43 flank the strip and are arranged tocut the lower side marginal corners. The pair comprising 40 and 41 arearranged in advance of the pair 42 and 43.

As these shaving devices are all substantially the same in construction.and operation. a detailed description of one such device and itsassociated mechanism, will make clear the construction and operation ofall the shaving devices.

Secured to the housing structure 22 on cach side, near the adjacentpcripheries of wheels 23 and 24, is a structure such as is shown inFigs. 6 and 8 to l2 inclusive. rIhis structure comprises the bracket 44,to which are secured the plates or elements and 46, one at a right angleto the other. These two plates are beveled in the same plane as at 47,see Fig. 6a. The adjacent edges of the bevel formation of 45 and 46 arein the form of sharp knife edges spaced apart leaving a slot 48.

The lower periphery of wheel 23 is in horizontal alinement with theinner under side of plate 45. To the inner side of bracket 44 is securedthe roller 49; the upper periphery of this roller is in horizontalalinement with the upper periphery of wheel 24. It will thus be seenthat the two wheels 23 and 24 and the elements 45, 46 and 49 of thefia-nking structuresform together a rectangular passage of substantiallythe same crosssec tion dimensions of the strip 54, which is to b'eoperated upo-n. The inner vertical surfacesof the plates 46 are spacedapart the vexact width of the strip, so that the upper side marginalcorners of the strip 54 will project through the slots 48. rI`he wheels28 and 24 exert a spring pressure on the strip, and, being positivelyrotated, cause the travel of the strip 54 through the passage formedtherefor as above described. The roller 49 is mounted on arna- 51,pivot-ed at 52 to bracket 44. The arm 5l is controlled by the spring 53to cause a pressure of roller 49 on the strip 54. This insures thepositive projection of the upper marginal corner of the strip 54 throughthe slot 48 and the effective pressure ofl the adjacent parts of saidstrip against the knife edge margins of the slot, as the strip travelsthrough the passage.

Properly secured to the bracket 44 is the knife or planing blade 55.This blade is secured in place preferably by means of the plate 56 andsecuring screws. The plate 56 is provided with the pressure tongue 57which extends over the blade to near its cutting edge.; The cutting edgeof blade 55 lies against the beveled surface 47 and at an acute angle tothe line of travel of said marginal co-rner of the strip 54.

In operation, as the strip of material 54 is fed in between the wheels423 and 24 in the direction of the arrow in Fig. 5, the upper marginalcorners of the strip are pushed with substantial pressure into the slot48 with the adjacent portions of the strip firmly pressed against theknife edge margins of the slot 48. The cutting edge of the shaving blade55, which lies upon t-he bevel 47 is in substantially the same plane asthat of said knife edge margins of slot 48, it follows that saidprojecting marginal corners are cleanly shaved from the strip 54 as itpasses against said shaving knives 55. The knife edge of the shavingblade leing preferably in. tight pressure contact with. the

knife-edge-ma.rgins of the slot, at the point of shaving, the cutting orshaving operation partakes somewhat of the nature of a shearing action,so that the cutting or shearing is positive up to theknife-edge-margins, which eifectually prevents tearing or fraz'zling thematerial on the lines of cut.

After passing the pair' of shaving knives flanking the wheels 23 and 24,the strip passes to the similar' shaving knives flanking the wheels 25and 26. These knives however opera-te upon the lower side marginalcorners of the strip, before the same passes through the delivery wheels27 ,and 28.

iVhat I claim is l. The method of beveling which consists in moving astrip' of material so that a corner of its side margin shall projectbetween two longitudinally extending knife edges and encounter ashearing blade lying transverse its line of travel and substantially inthe plane of said longitudinally extending knife edges.

2. The method of beveling which consists in moving a strip of materialso that a corner of its side margin shall project between twolongitudinally extending knife edges and encounter a shearing bladelying transverse its line of travel and substantially in the plane ofsaid longitudinally extending knife edges, and pressing the materialagainst a knife edge at the p'oint of engage ment with the shearingedge.

3. The method of beveling which consists in moving a strip of materialso that a corner of its side margin shall project between twolongitudinally extending knife edges and encounter' a. shearing bladelying transverse its line of travel and substantially in the plane 'ofsaid longitudinally extending knife edges, and pressing the materialagainst the knife edges on the line of engagement with the shearingedges- 4. In a beveling device, the combination of means for moving astrip of material, means forming a confined passage therefor,corresponding in cross-section substantially with the cross-section ofthe strip, and provided with a corner slot having parallel knife edgemargins, and a shearing blade positioned transverse the slot and closeto the knife edge margins.

5. In a beveling device, the combination of means including cooperatingpressure wheels `for moving a strip of material, means forming aconfined passage therefor, corresponding in cross-section substantiallywith the cross-section of the strip, and provided with a corner slothaving parallel knife edge margins, and a shearing blade positionedtransverse the slot and close to the knife edge margins.

6. In a beveling device, the combination of means for moving a strip ofmaterial, ii'ieans forming a confined 4passage therefor,

llO

corresponding in cross-section substantially with the cross-section ofthe strip, and provided with a corner slot having parallel knife edgemargins, means for pressing the strip during its travel against theknife-edge margins, and a shearing blade positioned transverse the slotand close to the knife edge margins.

7. In a beveling device, the combination of means for moving a strip ofmaterial, means forming a con'lined passage therefor, corresponding incross-section substantially With the cross-section of the strip, andprovided With a corner slot having parallel knife edge margins, and ashearing blade having its cutting edge in engagement with said knifeedge margins.

8. In a beveling device, the combination of means for moving a strip ofvmaterial, means forming a passage therefor corresponding substantiallyto the cross-section of the strip, means forming a slot having marginsin the Walls of said passage into which a marginal corner of the stripshall project, and a cutter' cooperating with said margins for severingfrom the strip said projecting corner.

9. In a beveling device, the combination of means for moving a strip ofmaterial, means forming a passage therefor corresponding substantiallyto the cross-section of the strip, means forming a slot havingknife-edge-margins in the Walls of said passage into which a marginalcorner of the strip shall project, and a cutter having its edge insubstantially the same plane as that of the said knife-edge-margins, forsevering from the strip said marginal corner.

lO. In a beveling device, the combination of means for moving a strip ofmaterial, means forming a. guide channel for said strip including abracket element and removable elements secured thereto, havingknife-edge margins spaced apart for the projection of a corner of thestrip between the same, and a cutting device having a shearing edge insubstantially the same plane as said knife-edge margins.

FREDERCK C. SIMMONS.

